Nonvolatile memory system with program step manager and method for program step management
US9899092B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2016 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Feb 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/4402
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Solid State Drive (SSD) that includes a host connector receptacle for connecting to a host computer, a plurality of NAND devices and a nonvolatile memory controller. The nonvolatile memory controller is configured to perform program operations and read operations on memory cells of each of the NAND devices. The nonvolatile memory controller includes a program step circuit configured to initially program memory cells of each of the NAND devices using an initial program step voltage and is configured to change the program step voltage used to program the memory cells of each of the NAND devices during the lifetime of each of the NAND devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.